(CNN) – Despite donating over $15 million on behalf of Newt Gingrich's presidential bid, millionaire Sheldon Adelson admitted the former House speaker's campaign is nearing its end.

"It appears as though he's at the end of his line," Adelson said in a video posted on Youtube by the Jewish Journal Wednesday. "Because I mean mathematically he can't get anywhere near the numbers and is unlikely to be a brokered convention."FULL POST

CNN: Rubio endorses Romney, argues GOP should 'come together'
Marco Rubio, a senator whose name was floated first as a possible presidential, then vice presidential candidate, on Wednesday made an endorsement in the presidential race, saying, "It's evidently and increasingly clear that Mitt Romney is going to become the Republican nominee." Former President George H.W. Bush is also scheduled to formally endorse Romney on Thursday.

CNN: Amid new focus, Gingrich's ire remains the same
Newt Gingrich may have a new political focus, but the focus of his ire appears to be the same. At various times during a roughly 50-minute appearance at Georgetown University on Wednesday, the Republican presidential candidate re-stated familiar attacks on the news media, President Obama and critics. It was Gingrich's first public appearance since news broke that he had dramatically scaled back his presidential campaign.